Gridbox
Gridbox is a WordPress theme by ThemeZee (Free). Tested on 2026-10-12 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 93 for mobile speed and 100 for desktop speed, 40/40 for SEO and 92/92 for accessibility (mobile/desktop, 0–100). On its marketplace it is rated 3.9 out of 5 from 7 reviews. Note: its demo home page is light — 102 KB in 9 requests — where a stocked storefront is usually 1–4 MB, so the speed score flatters it.
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 93 | 100 |
| SEO | 40 | 40 |
| Accessibility | 92 | 92 |
| Best practices | 100 | 100 |
Single preset · measured 4 times since 2026-10-12 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Gridbox home page
Mobile
Speed 93 · 7 points to gain
- −3.5 First Contentful Paint medium effort
- −3 Largest Contentful Paint medium effort
SEO 40 · 60 points to gain
- −40.3 Page is blocked from indexing low effort
- −10 Document does not have a meta description low effort
- −10 Links do not have descriptive text low effort
Accessibility 92 · 8 points to gain
- −7.6 Background and foreground colors do not have a sufficient contrast ratio. medium effort
Desktop
SEO 40 · 60 points to gain
- −40.3 Page is blocked from indexing low effort
- −10 Document does not have a meta description low effort
- −10 Links do not have descriptive text low effort
Accessibility 92 · 8 points to gain
- −7.6 Background and foreground colors do not have a sufficient contrast ratio. medium effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Gridbox default demo ↗ | 93 | 40 | 92 | 100 | 40 | 92 | 2026-10-12 |
| home ↗ | 93 | 40 | 92 | 100 | 40 | 92 | 2026-10-12 |
Show this score on your site
A live badge: it always shows Gridbox's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/wordpress/gridbox"><img src="https://themestested.com/badge/wordpress/gridbox.svg" alt="Gridbox speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.